Ripiphorus popenoei (Le Conte 1880)

Rhipiphorus popenoei (Leconte)
1880. Myodites popenoei Leconte, Trans. Am. Ent. Soc, VIII, p. 210. 1892. Myodites popenoei Horn, Trans. Am. Ent. Soc, xix, p. 48. 1904. Myodites popenoei Pierce, Stud. Univ. Nebr., iv, p. 161. 1920. Myodites popenoei Pierce, Ent. News, xxxi, p. 278.
Head, thorax, anterior part of pronotum, sides and median line, as well as median line at tip of pygidium brownish black or brown. Otherwise red-yellow. Legs yellow, coxae and proximal end of femora brown. Vertex rounded, front with distinct median excavation in front of vertex. Clypeus yellowish, emarginate and shining. Maxillary palpi yellow. Antennae of female brownish-black, slightly pale at base, rami subequal, and moderately long. Pronotum finely punctured at base, very sparsely along lateral margins, glabrous on disc where there is a distinct excavated median line. Base broadly rounded and but little broader than anterior margin. Elytra punctured, but smooth along humeri.
Length, 8.5 mm.
Type. — Female; Colorado. [Leconte Collection.] Allo-plesiotype. — Male; Palmerlee, Arizona, August, (N. Banks). [Leng Collection.]
The above description was made from the type in the Leconte Collection. The male in the Leng Collection, agrees very well with the above description and the type. It differs, however, in the following: The pronotum is entirely black with a reddish tinge at hind angles. Hind femora a'nd part of hind tibia brownish-black, otherwise legs and tarsi as described above. Pygidium (8th tergite) black, two spots on the 7th tergite and first sternite brownish. In addition to the above, the following should be mentioned: Antennae with rami curled longer than head, and blackish-brown. First segment of hind tarsi thicker than the others, obliquely truncate and emarginate, and as long as the two following, together; second segment slightly shorter than fourth.